A:= [[-4, 1, 3,-2,-5], 
     [ 4,-5, 1,-2, 3], 
     [-4, 5, 1, 2, 3], 
     [ 1, 3, 4, 5,-2], 
     [ 2,-5,-4, 1, 3], 
     [ 3, 5, 1, 4,-2]]: